Bumping-post.



L. M. LAWRENCE.

B`UMP|NG POST.

APPLICATION FILED APR. 14. 1915.

9 @'Y@ l Patented June 20, 1916.

TMI: COLUMBIA PLANOURAPH co.. WASHINDTON, D. C.

LEWIS M. LAWRENCE, OF CHICAGO, ILLINOIS.

BUMPING-POST.

Specification of Letters Patent.

Patented June 2U, 1916.

Application filed April 14, 1915. Serial No. 21,197.

To all whom z5 may concern.'

Be it known that I, LEWIS M. LAWRENCE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Bumping-Posts, of which the following is a speciiication.

My invention relates to bumping posts for railroad use, and, more particularly to what may be termed a creeping post, that is, one in which the construction provides for taking care of excessive shocks which would otherwise either damage the cars or destroy the post itself. With this in view, I have constructed my post so that in case of excessive shocks it will act as a plow, thus causing a more elastic shock than is usual in bumping posts and saving cars and posts.

My invention will be more readily understood by reference to the accompanying drawing which forms a part of this specification and throughout the various views of which like reference characters refer to like parts.

In this drawing: Figure 1 is a plan view of the bumper, and Fig. 2 is a longitudinal section on line 2-*2 of Fig. 1.

The railroad-rails 1, 1, are mounted upon the ordinary ties 2. Midway between the tracks and perpendicular thereto I provide a channel-shaped member or post 3. This post is supported upon an angle-iron crossrail 4 by a rivet 6. Extending rearwardly and downwardly from a point near the top of post 3 is a V-shaped brace composed of the angle-irons 7, 7 said angle-irons being suitably connected by brace-bars 8, 8. The lowei` ends of the angle-irons 7, 7, are anchored in a pair of tension-bars 9', 9, whose ends are turned back upon the ends of said angle-irons at 10, 10. A skate or shoe 11 is secured beneath the ends of the tension-bars 9 and has its edgeportion 12 slightly elevated, thus allowing said shoe to slide upon the mound of earth or other illing, which rises about a foot above the tie level.

The ends 18, 13, of the tension-bars 9 are secured to the cross-rail 4 by rivets or bolts, as may be desired. A plow-member 14 is also secured to the tension-bars 9 and the bar or strap 15 which passes around the back Copies of this patent may be obtained for of the post 3 above the V-shaped brace 7 slopes downwardly along the lower edge of the plow 14 and is riveted thereto. While I have shown a solid plate as constituting the plow I may, however, at times use a plow comprised of a series of strips, but where sand is used as ballast, the solid plow is preferable.

The operation of this bumping post is as follows: When a car bumps against the post 3 the buiing strain will be transmitted into the bar 15 which forms a loop around the post and the lower-edge of the plow. The plow is embedded in the road ballast and, the weight of the car being upon the rails 1, 1, directly above the plow, prevents said plow from rising, and, if the impact is sufiicient to move the post 3, then the plow 14 is moved in the ballast. The rear-end of the bumping-post which carries the shoe will pass along the top of the mound and no damage will be done.

Having now described my invention in its preferred form, but realizing that many modifications in its construction might be made without departure from the substance and spirit of the invention, I submit the appended claims.

I claim:

1. In a bumping-post, the combination with a centrally-disposed bumping member, of a cross-rail supported upon the railroadrails, a plow, a shoe, and means for connect ing the several elements as described, substantially as described.

2. In a bumpingpost having a central bu'liing-member, a cross rail overlying the railroad-rails and secured to said buiingmember` of a plow located beneath said railroad-rails suitably connected to said post, a shoe or skate secured to a pair of bars eX- tending to said plow, a brace connecting said buiing-member and said shoe, the lower ends of said brace being held in position by upturned ends of said pair of bars, substantially as described.

LEWIS M. LAWRENCE.

Witnesses:

GEO. C. DAvrsoN, C. H. RoEssNEn.

ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

